Improvement in door-springs



STATES, PATENT OFFICE.

REINHARD SCHEIVDLER, OF NEl/VARK, OHIO.

IM PRO'VEM'ENT IN DOOR-SPRINGS.

Specification forming part of Letters Patent No. 59,032, dated October `33,1866.

F0-all whom it may concern.-

Beit known that I, REINHARD SOHEIDLER, of Newark, in the county of Licking and State of Ohio, have invented a new and Improved Door-Spring; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this speci- Figure 1 is a view of the spring without the covers. Fig. 2 is a similar view with the springcoil covered by its guard-plate. -Fig. 3 shows the spring ocomplete. Figs. 4 and 5 are sectional views of the spring. Fig. 6 is a perspective view of the spring as it would appear if applied to a door.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improvement on thatclass of springs for doors, gates, &c., in which a tongue is acted upon by a spiral l spring that is inclosed within a box secured to the door-frame, said tongue being forced by its spring against the door and allowed to vibrate as the door is opened or closed.

The nature of my invention consists in the employment of two coiled springs having their outer ends secured to the ends of the springbox, which incloses the coils by means of nuts,

so that the adjusted power of the springs can be retained, the said nuts being screwed upon screw-threaded ends of the wire or met-al of which the springs are formed, and caused to jam against fixed shoulders of the support of the springs.

The invention further consists in stiifening the spring-tongueand affording its end nearest the spring-box a firm bearing upon this box, so that in vibrating this tongue its heel shall move in the arc of a circle concentric tothe axis of the coils, and thus prevent an undue compression of the coils at theirl inner ends. At the same time the heel of said tongue forms a coverfor thc slot in the springbox, and excludes water, dirt, &c., therefrom, as will be hereinafter described.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, Arepresents a plate, which is secured rigidly to a door-frame or gate-post,and a a are two lugs, which are secured to said plate at asuitable distance through holes through the lugs aa., and provided with nuts c c', as shown in Fig. 1. These springs c c are wound around the rod bin the same direction, and their inner ends are straightened out and brought together, as

shown in Figs. l and 2, for the purpose of Iforming a part of a tongue or lever, G.

The lever-tongue C is composed of two nar- Yrow plates, e f, ofa suitable length, which plates are secured together so as to inclose the straight ends of the springs. The ends of the springs 'are secured to the plate e by means of staples Vand slots, so that a rigid connection is made forstiffening the said ends ofthe springs nearly to fthe point where they are bent around the pin b to form the spring. The plate f serves as a cover for the ends of the springs and also as a means for stiifenin g them.

The spring-box b is of a circular form, and it is fitted between Athe lugs ct a, and secured to the plate A, so as to form a coverfor inclosing the coils c c, and also to form a bearing for the inner end of the tongue O. This tongue is constructed with a curved flange, f', on the portion f, which fits snugly upon the spring-box B, and covers up the slot t in the v box B, which is intended for allowing the tongue C to vibrate. This curvediiange on, the tongue is intended more particularly to press upon `the surfaceof thebox B and to a'ord the inner end of said tongue a firm support, so that the strain will come upon the box B, inclosing the spring-coils, instead of upon that portion of the straightened ends of the springs in rear of the tongue.

Without the flange -f, those portions of the springs c c which extend from the coils to the end of the lever O would receive all the strain, and would soon become bent, so that the springs would not close the door 5 but byhavi point between the ends of the plate A, so that the force which is applied to the lever or tongue C will operate equally upon both springs.

The mode of seeurin g the outer ends of the coils c c to the fixed lugs a aY by means of nuts c c', which screw upon screw-threaded ends of the sprin g Wire, the adjusted tension or power ot" both springs can be retained, and both springs may thus be made to act equally.

In Fig. 6 I have represented the spring arranged as it would appear if applied to a door or gate. The plate Gis merely abearing-plate for the outer end of the ton gueG to slide upon.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The tongue C, in combination with the coils c c, secured to the lugs a a in the mauner described.

REINHARD SGHEIDLER.

Witnesses:

GEO. M. GRAPER, J. M. CoNNEL. 

